Meatest M-140, Operation Manual, Page: 122 / 130

M-140 Multifunction Calibrator MEATEST
120 Operation manual v46
Specification
Uncertainties include long-term stability, temperature coefficient, linearity, load and line regulation and the
traceability of factory and National calibration standards. Specified accuracy is valid after one hour warm up in
temperature range 23 ± 2
o
C. Specified accuracy is one year accuracy.
Calibrator
Voltage
summary range DCV: 0

V – 1000 V
summary range ACV: 0.1 mV – 1000 V
internal ranges: 20 mV, 200 mV, 2 V, 20 V, 240 V, 1000 V
voltage resolution: 61/2 digit
frequency resolution: 6 digit, minimum step 0.001Hz
frequency accuracy: 0.005 %
frequency range: 20 Hz to 100 kHz below 20 V
20 Hz to 10 kHz below 200 V
20 Hz to 1000 Hz below 1000 V
DCV uncertainty
range % value + % range
Max guaranteed load current [mADC]
0

V – 20.00000 mV 0.03 + 10

V 5
20.00001 mV – 200.0000 mV
0.01 + 15

V
5 / 40
*1
0.200001 V – 2.000000 V 0.003 + 0.0008 40
2.00001 V – 20.00000 V 0.003 + 0.0005 30
20.0001 V – 240.0000 V
*3
0.003 + 0.0005 30
240.001 V – 1000.000 V 0.005 + 0.005 2
*1
5mA load current within specified accuracy. For load current in range 5mA to 40 mA add additional accuracy U(uV) = 10 * I
load
(mA)
*3
value of the range for uncertainty calculation is 200 V
ACV uncertainty
range % value + % range max. current [mArms] % value + % range max. current [mArms]
20 Hz - 10 kHz 20 Hz - 10 kHz 10 kHz - 50 kHz 10 kHz - 50 kHz
0.10000 mV – 20.00000 mV 0.2 + 0.05 + 20

V 5 0.20 + 0.10 + 20

V 5
20.0001 mV – 200.0000 mV 0.1 + 0.03+ 20

V 5 0.15 + 0.05 + 20

V 5
0.200001 V – 2.000000 V 0.025 + 0.005 30 0.05 + 0.01 10
2.00001 V – 20.00000 V 0.025 + 0.005 30 0.05 + 0.03 10
20.0001 V – 240.0000 V
*3
0.025 + 0.010 30 - -
240.001 V – 1000.000 V 0.03 + 0.02
*2
2 - -
*2
valid for f < 1000 Hz
*3
value of the range for uncertainty calculation is 200 V, in the range 200 to 240 V is frequency limited to 1000 Hz.
range % value+ % range max. current [mArms]
50 kHz - 100 kHz 50 kHz - 100 kHz
0.10000 mV – 20.00000 mV 1.0 + 0.10 + 20

V 3
20.0001 mV – 200.0000 mV 0.3 + 0.05 + 20

V 3
0.200001 V – 2.000000 V 0.2 + 0.05 5
2.00001 V – 20.00000 V 0.2 + 0.05 5
20.0001 V – 240.0000 V
*3
- -
240.001 V – 1000.000 V - -
Auxiliary parameters
range 20mV 200mV 2V 20V 200V 1000V
THD
*4 *5
0,05% + 200 uV 0,05% + 300 uV 0,05% 0,05% 0,05% 0,2%
output impedance
< 10 m

< 10 m

< 10 m

< 10 m

< 100 m

< 100 m

maximal capacitance
load
500 pF 500 pF 500 pF 500 pF 300 pF 150 pF
*4
parameter includes non-linear distortion and non-harmonic noise